k+1 Heads Are Better than k for PDAs

Marek Chrobak, Ming Li. k+1 Heads Are Better than k for PDAs. J. Comput. Syst. Sci., 37(2):144-155, 1988.

@article{ChrobakL88,
  title = {k+1 Heads Are Better than k for PDAs},
  author = {Marek Chrobak and Ming Li},
  year = {1988},
  researchr = {https://researchr.org/publication/ChrobakL88},
  cites = {0},
  citedby = {0},
  journal = {J. Comput. Syst. Sci.},
  volume = {37},
  number = {2},
  pages = {144-155},
}